V4L/DVB (7659): dvb-core: Implement DMX_SET_BUFFER_SIZE for dvr
V4L/DVB (7659): dvb-core: Implement DMX_SET_BUFFER_SIZE for dvr

Implementation of DMX_SET_BUFFER_SIZE for dvr.
Synchronization of the code of DMX_SET_BUFFER_SIZE for demux and dvr.

Signed-off-by: Andrea Odetti <69fa39831636ab5e571c37b4f799935cdce28eec@gmail.com>
Signed-off-by: Oliver Endriss <9b3f86b56e4ec8d638cb909e38a925ff6631c42a@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@infradead.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas